DAP4 Data Request Form (beta)OMI-Aura_L3-OMHCHOd_2019m0924_v003-2019m0925t082426.nc
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dataset: OMI-Aura_L3-OMHCHOd_2019m0924_v003-2019m0925t082426.nc




  • HDF5_GLOBAL
    • IdentifierProductDOI: 10.5067/AURA/OMI/DATA3010
    • ProductGenerationAlgorithm: OMHCHOd
    • RangeBeginningDate: 2019-09-24
    • ContactPersonName: Kelly Chance
    • GranuleID: OMI-Aura_L3-OMHCHOd_2019m0924_v003-2019m0925t082426.nc
    • RangeBeginningTime: 00:00:00Z
    • RangeEndingTime: 00:00:00Z
    • ContactPersonEmail: kchange@cfa.harvard.edu
    • DataSetQuality: OMHCHOd dataset has been computed after excluding level 2 observations with SZA > 70 and cloud fraction > 0.3 and including only the highest quality retrievals as characterized by the level 2 product quality flags. Further details can be found in the OMHCHOd.README file
    • ProcessingLevel: Level 3
    • VersionID: 003
    • IdentifierProductionDOIAuthority: https://www.doi.org
    • references: Sun et al., 2018 (https://doi.org/10.5194/amt-11-6679-2018),Gonzalez Abad et al., 2015 (https://doi.org/10.5194/amt-8-19-2015)
    • SouthernmostLatitude: -90.00000000
    • ContactPersonRole: Lead algorithm scientist
    • ObservationArea: Global
    • institution: OMI SIPS
    • ProductionDateTime: 2019m0925t082426Z
    • NorthernmostLatitude: 90.00000000
    • MaximumCloudFraction: 0.3000000119
    • ProductGenerationAlgorithmVersion: 0.0.5
    • LongitudeResolution: 0.1000000015
    • title: OMI/Aura Formaldehyde (HCHO) Total Column Daily L3 Weighted Mean Global 0.1deg Lat/Lon Grid
    • MaximumSZA: 70.00000000
    • Format: NetCDF-4
    • EasternmostLongitude: 180.0000000
    • InputOriginalFile: OMI-Aura_L2-OMHCHO_2019m0923t2314-o80803_v003-2019m0924t065448.he5,OMI-Aura_L2-OMHCHO_2019m0924t0053-o80804_v003-2019m0924t101800.he5,OMI-Aura_L2-OMHCHO_2019m0924t0232-o80805_v003-2019m0924t115252.he5,OMI-Aura_L2-OMHCHO_2019m0924t0411-o80806_v003-2019m0924t114433.he5,OMI-Aura_L2-OMHCHO_2019m0924t0550-o80807_v003-2019m0924t131248.he5,OMI-Aura_L2-OMHCHO_2019m0924t0729-o80808_v003-2019m0924t150719.he5,OMI-Aura_L2-OMHCHO_2019m0924t0908-o80809_v003-2019m0924t164550.he5,OMI-Aura_L2-OMHCHO_2019m0924t1046-o80810_v003-2019m0924t203534.he5,OMI-Aura_L2-OMHCHO_2019m0924t1225-o80811_v003-2019m0924t214541.he5,OMI-Aura_L2-OMHCHO_2019m0924t1404-o80812_v003-2019m0924t215604.he5,OMI-Aura_L2-OMHCHO_2019m0924t1543-o80813_v003-2019m0924t235028.he5,OMI-Aura_L2-OMHCHO_2019m0924t1722-o80814_v003-2019m0925t011348.he5,OMI-Aura_L2-OMHCHO_2019m0924t1901-o80815_v003-2019m0925t042003.he5,OMI-Aura_L2-OMHCHO_2019m0924t2040-o80816_v003-2019m0925t063533.he5,OMI-Aura_L2-OMHCHO_2019m0924t2219-o80817_v003-2019m0925t062251.he5,OMI-Aura_L2-OMHCHO_2019m0924t2357-o80818_v003-2019m0925t080002.he5
    • Conventions: CF-1.7
    • source: OMI
    • DayOfYear: 267
    • LatitudeResolution: 0.1000000015
    • LongName: OMI/Aura Formaldehyde (HCHO) Total Column Daily L3 Weighted Mean Global 0.1deg Lat/Lon Grid
    • RangeEndingDate: 2019-09-25
    • ShortName: OMHCHOd
    • WesternmostLongitude: -180.0000000
    • history: 2019m0925t082426Z; Original file created by OMI SIPS
  • key_science_data:
  • support_data:
  • qa_statistics:


  • [ latitude = 0..1799 ] [ longitude = 0..3599 ]


    key_science_data_column_amount[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: mean formaldehyde column amount; units of molecules/cm^2
      • long_name: HCHO column amount
      • units: molecules/cm^2
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: column_amount
      • fullnamepath: /key_science_data/column_amount
    key_science_data_column_uncertainty[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: mean column amount uncertainty; units of molecules/cm^2
      • long_name: HCHO column uncertainty
      • units: molecules/cm^2
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: column_uncertainty
      • fullnamepath: /key_science_data/column_uncertainty
    support_data_albedo[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: surface albedo
      • long_name: surface albedo
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 1.000000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: albedo
      • fullnamepath: /support_data/albedo
    support_data_terrain_height[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Int16)
    • attributes
      • _FillValue: -30000
      • comment: terrain height
      • long_name: terrain height
      • units: m
      • valid_min: -1000
      • valid_max: 10000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: terrain_height
      • fullnamepath: /support_data/terrain_height
    support_data_cloud_fraction[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: cloud fraction for AMF calculation
      • long_name: AMF cloud fraction
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 1.000000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: cloud_fraction
      • fullnamepath: /support_data/cloud_fraction
    support_data_cloud_pressure[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: cloud pressure for AMF calculation
      • long_name: AMF cloud pressure
      • units: hPa
      • valid_min: 0.000000000
      • valid_max: 1200.000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: cloud_pressure
      • fullnamepath: /support_data/cloud_pressure
    support_data_amf[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: air mass factor (AMF)
      • long_name: air mass factor
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 100.0000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: amf
      • fullnamepath: /support_data/amf
    support_data_sample_weight[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: sample weight
      • long_name: sample weight
      • units: 1
      • valid_min: 0.000000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: sample_weight
      • fullnamepath: /support_data/sample_weight
    qa_statistics_num_samples[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000000
      • comment: number of samples in the calculation considering the summed spatial sensitivity of all satellite pixels in each level 3 grid box
      • long_name: number of samples
      • units: 1
      • valid_min: 0.000000000
      • valid_max: 1000.000000
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: num_samples
      • fullnamepath: /qa_statistics/num_samples
    qa_statistics_data_quality_flag[ latitude= 0 ..1799] [ longitude= 0 ..3599] (Type is Int16)
    • attributes
      • _FillValue: 2
      • comment: main data quality flag. 0 (good, number of samples > 0.1)1 (good, number of samples < 0.1) 2 (bad / not computed)
      • long_name: main data quality flag
      • falg_values: 0, 1, 2
      • flag_meanings: good_number_of_samples_greater_than_0.1 good_number_of_samples_less_than_0.1 bad_or_not_computed
      • valid_min: 0
      • valid_max: 2
      • coordinates: longitude latitude
      • _Storage: contiguous
      • origname: data_quality_flag
      • fullnamepath: /qa_statistics/data_quality_flag
    latitude[ latitude= 0 ..1799] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: latitude at grid box center
      • long_name: latitude
      • units: degrees_north
      • valid_min: -90.00000000
      • valid_max: 90.00000000
      • _Storage: contiguous
      • origname: latitude
      • fullnamepath: /latitude
    longitude[ longitude= 0 ..3599] (Type is Float32)
    • attributes
      • _FillValue: -1.000000015e+30
      • comment: longitude at grid box center
      • long_name: longitude
      • units: degrees_east
      • valid_min: -180.0000000
      • valid_max: 180.0000000
      • _Storage: contiguous
      • origname: longitude
      • fullnamepath: /longitude

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